Methods and apparatus for phase noise estimation in data symbols for millimeter wave communications

A method for wireless communication by a receiving device, comprising:

• receiving an indication of a phase noise pilot configuration from a transmitting device via at least one of a radio resource control (RRC) signaling, a physical downlink control channel (PDCCH), or a downlink control information (DCI), wherein presence of phase noise pilots in a subframe is indicated via the RRC signaling and a tone pattern for the phase noise pilots is indicated implicitly by one or more parameters carried in the DCI;
• receiving the phase noise pilots in at least one data symbol according to the phase noise pilot configuration;
• and
• determining a phase noise value associated with the at least one data symbol based on the phase noise pilots received in that symbol.

An apparatus for wireless communication by a transmitting device, comprising:

• at least one processor coupled with a memory and configured to identify a phase noise metric associated with at least one receiving device and determine a phase noise pilot configuration based, at least in part, on the identified phase noise metric;
• and
• a transmitter configured to provide an indication of the phase noise pilot configuration to the at least one receiving device via at least one of a radio resource control (RRC) signaling, a physical downlink control channel (PDCCH), or a downlink control information (DCI),
• wherein presence of phase noise pilots in a subframe is indicated via the RRC signaling and a tone pattern for the phase noise pilots is indicated implicitly by one or more parameters carried in the DCI.

An apparatus for wireless communication by a receiving device, comprising:

• a receiver configured to:
• receive an indication of a phase noise pilot configuration from a transmitting device via at least one of a radio resource control (RRC) signaling, a physical downlink control channel (PDCCH), or a downlink control information (DCI);
• and
• receive phase noise pilots in at least one data symbol according to the phase noise pilot configuration, wherein presence of phase noise pilots in a subframe is indicated via the RRC signaling and a tone pattern for the phase noise pilots is indicated implicitly by one or more parameters carried in the DCI;
• and
• at least one processor coupled with a memory and configured to determine a phase noise value associated with the at least one data symbol based on the phase noise pilots received in that symbol.